Global Volcanism Program | Image GVP-05283
The 1986 lava dome at Augustine is topped with a 50-m-high spine. The lava dome at the summit was constructed within an arcuate crater within in the 1976 lava dome. As seen in this 1987 view from the SE, the surface of the 1976 dome is covered with smooth-textured pyroclastic ejecta from the 1986 eruption. Both the 1976 and 1986 lava domes lie within an arcuate crater within the 1964 dome, which forms the high point of the volcano at the left.
Photo by Alaska Volcano Observatory, U.S. Geological Survey, 1987.